Flag puzzle



FIG. 1 is a top view of a flag puzzle showing my new design with its pieces in an assembled state;

FIG. 2 is a top view showing the design with its pieces in a separate state;

FIG. 3 is a bottom view of FIG. 1; and,

FIG. 4 is a bottom view of FIG. 2.

The black background is for the purpose of visibility of the puzzle and forms no part of the claimed design. 

CLAIM The ornamental design for the flag puzzle, as shown and described. 